<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
<script>
/*
 比较运算符:
 ==
 !=
 ===
 !==
 
 >  < >= <=
 
比较运算符在比较连个字符串的时候, 会比较字符在字母表中的顺序
 */
/*var a = 11;
 var b = 10;
 console.log(a >= b);*/
var a = undefined
var b = false
console.log(a >= b);
</script>
</body>
</html>